Wilson, who was battling for the No. 3 position behind Brandon Marshall and Alshon Jeffery, was hurt when he dove for a pass in the end zone.

"Diving for balls is one of the most difficult things not to do when you're a competitive player," Bears coach Marc Trestman said. "We promote it, we talk about it a lot. When a guy goes to make a play on the ball you're not going to be disappointed with him if he doesn't go to the ground."

Wilson, a seventh-round draft pick out of Washington State last year, said he was hopeful of returning this year. Last season, he played in 10 games and started once, and had two receptions for 13 yards.